package com.atguigu.tingshu.album.service.impl;

import com.atguigu.tingshu.album.mapper.AlbumInfoMapper;
import com.atguigu.tingshu.album.mapper.TrackInfoMapper;
import com.atguigu.tingshu.album.mapper.TrackStatMapper;
import com.atguigu.tingshu.album.service.TrackInfoService;
import com.atguigu.tingshu.album.service.VodService;
import com.atguigu.tingshu.common.constant.SystemConstant;
import com.atguigu.tingshu.common.result.Result;
import com.atguigu.tingshu.model.album.AlbumInfo;
import com.atguigu.tingshu.model.album.AlbumStat;
import com.atguigu.tingshu.model.album.TrackInfo;
import com.atguigu.tingshu.model.album.TrackStat;
import com.atguigu.tingshu.query.album.TrackInfoQuery;
import com.atguigu.tingshu.user.client.UserInfoFeignClient;
import com.atguigu.tingshu.vo.album.*;
import com.atguigu.tingshu.vo.user.UserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.Assert;
import org.springframework.web.multipart.MultipartFile;

import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.stream.Collectors;

@Slf4j
@Service
@SuppressWarnings({"all"})
public class TrackInfoServiceImpl extends ServiceImpl<TrackInfoMapper, TrackInfo> implements TrackInfoService {

    @Autowired
    private TrackInfoMapper trackInfoMapper;

    @Autowired
    private TrackStatMapper trackStatMapper;

    @Autowired
    private AlbumInfoMapper albumInfoMapper;

    @Autowired
    private VodService vodService;

    @Autowired
    private UserInfoFeignClient userInfoFeignClient;

    @Override
    public void updateTrackStat(TrackStatMqVo trackStatMqVo) {
        //  1.  更新声音的播放量： update track_stat set stat_num = stat_num+1 where track_id = ? and stat_type = '0701' and is_deleted = 0;
        //  判断是否是属于播放量：
        if (SystemConstant.TRACK_STAT_PLAY.equals(trackStatMqVo.getStatType())){
            //  调用更新方法;
            trackInfoMapper.updateTrackStat(trackStatMqVo.getCount(),trackStatMqVo.getTrackId(), trackStatMqVo.getStatType());
            //  2.  更新专辑播放量；
            albumInfoMapper.updateAlbumStat(trackStatMqVo.getCount(), trackStatMqVo.getAlbumId(), SystemConstant.ALBUM_STAT_PLAY);
        } else if (SystemConstant.TRACK_STAT_COLLECT.equals(trackStatMqVo.getStatType())) {
            //  暂无;
        }

    }

    @Override
    public IPage<AlbumTrackListVo> findAlbumTrackPage(Page<AlbumTrackListVo> albumTrackListVoPage, Long albumId, Long userId) {
        /*
            1.  需要先根据专辑Id获取到声音列表;
            2.  判断用户是否登录：
                    null != userId;

                    null == userId;
                2.1 判断专辑类型;
                2.2 除用户已购买的声音Id；
         */
        IPage<AlbumTrackListVo> albumTrackListVoIPage = trackInfoMapper.selectAlbumTrackList(albumTrackListVoPage, albumId);
        //  查询专辑类型:
        AlbumInfo albumInfo = albumInfoMapper.selectById(albumId);
        //  判断用户是否登录;
        if (null == userId) {
            //  没有登录; 专辑类型是付费时，除免费试听声音都需要付费;
            if (!SystemConstant.ALBUM_PAY_TYPE_FREE.equals(albumInfo.getPayType())) {
                //  免费试听集数; 5
                Integer tracksForFree = albumInfo.getTracksForFree();
                //  除免费试听声音都需要付费;
                albumTrackListVoIPage.getRecords().stream().filter(albumTrackListVo -> albumTrackListVo.getOrderNum() > tracksForFree).forEach(albumTrackListVo -> albumTrackListVo.setIsShowPaidMark(true));
            }
        } else {
            //  获取用户信息;
            Result<UserInfoVo> userInfoVoResult = userInfoFeignClient.getUserInfoVo(userId);
            Assert.notNull(userInfoVoResult, "查询用户信息失败");
            UserInfoVo userInfoVo = userInfoVoResult.getData();
            Assert.notNull(userInfoVo, "查询用户信息失败");
            //  什么一个变量;记录是否需要付费; false: 免费； true: 付费
            boolean isPaid = false;
            //  判断专辑的类型：vip 免费
            if (SystemConstant.ALBUM_PAY_TYPE_VIPFREE.equals(albumInfo.getPayType())) {
                //  前提是用户是 vip且过期;
                if ((userInfoVo.getIsVip() == 1 && userInfoVo.getVipExpireTime().before(new Date())) || userInfoVo.getIsVip() == 0) {
                    //  需要付费;
                    isPaid = true;
                }
            } else if (SystemConstant.ALBUM_PAY_TYPE_REQUIRE.equals(albumInfo.getPayType())) {
                //  必须付费：
                isPaid = true;
            }
            //            else {
            //                //  免费;
            //                isPaid = false;
            //            }

            //  判断需要付费的情况：
            if (isPaid) {
                //  远程调用，需要知道用户购买了哪些声音; 专辑Id; 付费声音列表;userId--从本地线程中获取;
                List<AlbumTrackListVo> albumTrackListVoList = albumTrackListVoIPage.getRecords().stream().filter(albumTrackListVo -> albumTrackListVo.getOrderNum() > albumInfo.getTracksForFree()).collect(Collectors.toList());
                //  这个是付费声音Id
                List<Long> trackIdList = albumTrackListVoList.stream().map(AlbumTrackListVo::getTrackId).collect(Collectors.toList());
                //	获取用户购买的声音列表; 如果用户购买了； 将购买的声音Id与状态存储到map集合中; map.put(trackId,1)-买过; map.put(trackId,0)-未买过;
                Result<Map<Long, Integer>> mapResult = userInfoFeignClient.userIsPaidTrack(albumId, trackIdList);
                Assert.notNull(mapResult, "查询用户购买声音失败");
                Map<Long, Integer> map = mapResult.getData();
                //  map.put(trackId,1)-买过; map.put(trackId,0)-未买过;
                for (AlbumTrackListVo albumTrackListVo : albumTrackListVoList) {
                    //  Boolean isPaidMark = map.get(albumTrackListVo.getTrackId()) == 1 ? false : true;
                    //  Boolean isPaidMark1 = map.get(albumTrackListVo.getTrackId()) == 0 ? true : false;
                    //  默认是isShowPaidMark = false;
                    albumTrackListVo.setIsShowPaidMark(map.get(albumTrackListVo.getTrackId()) == 0);
                }

            }

        }

        //  返回数据；
        return albumTrackListVoIPage;
    }

    @Override
    public void updateTrackInfo(Long trackId, TrackInfoVo trackInfoVo) {
        //	trackId + trackInfoVo 知道用户具体的修改操作了！
        //	track_info;
        TrackInfo trackInfo = this.getById(trackId);
        //	先获取原始的文件Id
        String originMediaFileId = trackInfo.getMediaFileId();
        //	属性赋值：
        BeanUtils.copyProperties(trackInfoVo, trackInfo);
        //	判断声音是否被修改;
        if (!originMediaFileId.equals(trackInfoVo.getMediaFileId())) {
            //	修改了声音;
            TrackMediaInfoVo mediaInfo = vodService.getMediaInfo(trackInfoVo.getMediaFileId());
            //	赋值最新流媒体数据;
            trackInfo.setMediaType(mediaInfo.getType());
            trackInfo.setMediaDuration(mediaInfo.getDuration());
            trackInfo.setMediaSize(mediaInfo.getSize());
            trackInfo.setMediaFileId(trackInfoVo.getMediaFileId());
            //	原有不要的话;
            vodService.deleteMediaFile(originMediaFileId);
        }
        //	更新数据;
        this.updateById(trackInfo);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void removeTrackInfo(Long trackId) {
        //	查询当前声音对象;
        TrackInfo trackInfo = this.getById(trackId);
        //	track_info  track_stat album_info;
        trackInfoMapper.deleteById(trackId);
        //	track_stat
        trackStatMapper.delete(new LambdaQueryWrapper<TrackStat>().eq(TrackStat::getTrackId, trackId));
        //	album_info 更新 include_track_count
        AlbumInfo albumInfo = albumInfoMapper.selectById(trackInfo.getAlbumId());
        //	删除一条数据；
        albumInfo.setIncludeTrackCount(albumInfo.getIncludeTrackCount() - 1);
        //	需要更新记录;
        albumInfoMapper.updateById(albumInfo);
        //	在重新管理一下 order_num;
        //	update track_info set order_num = order_num - 1 where album_id = 1 and order_num > 52 and is_deleted = 0
        trackInfoMapper.updateOrderNum(trackInfo.getAlbumId(), trackInfo.getOrderNum());
        //	删除云点播中没有用的声音记录;
        vodService.deleteMediaFile(trackInfo.getMediaFileId());

    }

    @Override
    public IPage<TrackListVo> findUserTrackPage(Page<TrackListVo> trackListVoPage, TrackInfoQuery trackInfoQuery) {
        //	调用mapper 层方法
        return trackInfoMapper.selectUserTrackPage(trackListVoPage, trackInfoQuery);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void saveTrackInfo(TrackInfoVo trackInfoVo, Long userId) {
        try {
            //	track_info track_stat album_info;
            TrackInfo trackInfo = new TrackInfo();
            //	有相同的属性值，进行属性拷贝;
            BeanUtils.copyProperties(trackInfoVo, trackInfo);
            //	赋值用户Id
            trackInfo.setUserId(userId);
            //	order_num; 第一种查询当前专辑对应的声音集数+1; 第二种：查询专辑包含声音总数+1;
            AlbumInfo albumInfo = albumInfoMapper.selectById(trackInfoVo.getAlbumId());
            trackInfo.setOrderNum(albumInfo.getIncludeTrackCount() + 1);
            //	处理流媒体的数据; 时长，类型这些数据页面没有传递；fileId 查询流媒体数据，然后赋值：调用云点播的api;
            TrackMediaInfoVo trackMediaInfoVo = vodService.getMediaInfo(trackInfoVo.getMediaFileId());
            //	赋值：
            trackInfo.setMediaUrl(trackMediaInfoVo.getMediaUrl());
            trackInfo.setMediaDuration(trackMediaInfoVo.getDuration());
            trackInfo.setMediaType(trackMediaInfoVo.getType());
            trackInfo.setMediaSize(trackMediaInfoVo.getSize());
            //	保存声音结束;
            trackInfoMapper.insert(trackInfo);
            //	track_stat
            saveTrackStat(trackInfo.getId(), SystemConstant.TRACK_STAT_PLAY);
            saveTrackStat(trackInfo.getId(), SystemConstant.TRACK_STAT_COLLECT);
            saveTrackStat(trackInfo.getId(), SystemConstant.TRACK_STAT_PRAISE);
            saveTrackStat(trackInfo.getId(), SystemConstant.TRACK_STAT_COMMENT);
            //	album_info; 更新数据;
            albumInfo.setIncludeTrackCount(albumInfo.getIncludeTrackCount() + 1);
            //	更新操作;
            albumInfoMapper.updateById(albumInfo);
        } catch (BeansException e) {
            log.error("保存声音信息失败：{}", e);
            throw new RuntimeException(e);
        }
    }

    /**
     * 保存声音统计数据
     *
     * @param trackId
     * @param statPlay
     */
    public void saveTrackStat(Long trackId, String statPlay) {
        TrackStat trackStat = new TrackStat();
        //	赋值
        trackStat.setTrackId(trackId);
        trackStat.setStatType(statPlay);
        trackStat.setStatNum(new Random().nextInt(1000));
        //	数据保存
        trackStatMapper.insert(trackStat);
    }
}
